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All results from a given calculation for C2H6O2S (Dimethyl sulfone)

using model chemistry: MP2=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-623.882394
Energy at 298.15K 
HF Energy-623.300321
Nuclear repulsion energy272.591341
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2=FULL/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3189 3023 1.36      
2 A1 3101 2940 1.12      
3 A1 1565 1484 3.85      
4 A1 1471 1395 19.13      
5 A1 1204 1141 162.67      
6 A1 1076 1020 0.08      
7 A1 705 669 19.72      
8 A1 507 481 23.27      
9 A1 303 287 2.03      
10 A2 3196 3030 0.00      
11 A2 1549 1468 0.00      
12 A2 1008 955 0.00      
13 A2 291 276 0.00      
14 A2 207 196 0.00      
15 B1 3201 3034 4.31      
16 B1 1564 1483 16.20      
17 B1 1424 1350 182.21      
18 B1 1069 1013 2.78      
19 B1 373 354 1.72      
20 B1 236 224 0.53      
21 B2 3187 3021 0.01      
22 B2 3099 2937 0.03      
23 B2 1556 1475 10.48      
24 B2 1457 1381 29.19      
25 B2 1014 962 62.26      
26 B2 776 736 78.83      
27 B2 449 426 31.83      

Unscaled Zero Point Vibrational Energy (zpe) 19388.8 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 18380.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/3-21G*
ABC
0.14800 0.14187 0.13740

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.200
O2 -1.272 0.000 0.926
O3 1.272 0.000 0.926
C4 0.000 1.381 -0.930
C5 0.000 -1.381 -0.930
H6 0.000 2.293 -0.326
H7 0.000 -2.293 -0.326
H8 0.898 1.361 -1.552
H9 -0.898 1.361 -1.552
H10 -0.898 -1.361 -1.552
H11 0.898 -1.361 -1.552

Atom - Atom Distances (Å)
  S1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11
S11.46471.46471.78381.78382.35282.35282.39312.39312.39312.3931
O21.46472.54422.63972.63972.90602.90603.56382.85152.85153.5638
O31.46472.54422.63972.63972.90602.90602.85153.56383.56382.8515
C41.78382.63972.63972.76101.09433.72301.09271.09272.95092.9509
C51.78382.63972.63972.76103.72301.09432.95092.95091.09271.0927
H62.35282.90602.90601.09433.72304.58651.78301.78303.95733.9573
H72.35282.90602.90603.72301.09434.58653.95733.95731.78301.7830
H82.39313.56382.85151.09272.95091.78303.95731.79623.26062.7213
H92.39312.85153.56381.09272.95091.78303.95731.79622.72133.2606
H102.39312.85153.56382.95091.09273.95731.78303.26062.72131.7962
H112.39313.56382.85152.95091.09273.95731.78302.72133.26061.7962

picture of Dimethyl sulfone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C4 H6 107.223 S1 C4 H8 110.273
S1 C4 H9 110.273 S1 C5 H7 107.223
S1 C5 H10 110.273 S1 C5 H11 110.273
O2 S1 O3 120.571 O2 S1 C4 108.295
O2 S1 C5 108.295 O3 S1 C4 108.295
O3 S1 C5 108.295 C4 S1 C5 101.411
H6 C4 H8 109.225 H6 C4 H9 109.225
H7 C5 H10 109.225 H7 C5 H11 109.225
H8 C4 H9 110.550 H10 C5 H11 110.550
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability